K31 is an integrated voltage regulator designed to provide a stable output voltage regardless of input voltage or load variations. It comes in an 8-pin package (DIP-8 or similar).

Key Features: 1. Regulator Type: Linear integrated voltage regulator. 2. Number of Pins: 8 (DIP-8 or equivalent). 3. Input Voltage (VIN): Up to 40V (depending on the model). 4. Output Voltage (VOUT): Fixed or adjustable within 5-15V (depending on the version). 5. Maximum Output Current (IOUT): Typically up to 1.5A. 6. Stabilization Factor: High voltage stability with changes in input voltage or load. 7. Operating Temperature Range: From -40°C to +85°C.

Key Functions: • Overload Protection: Automatic current limiting when exceeding the nominal value. • Overheat Protection: Built-in shutdown system during excessive heating. • Low Noise Level: Minimizes interference in the output signal.

Special Features: • Easy to use with minimal external components. • Adjustable output voltage capability (for versions with adjustable output). • Suitable for power supplies, voltage stabilization in electronic devices, and control circuits.

This regulator is ideal for providing stable power to microcontrollers, sensors, or other electronic components in circuits with high precision voltage requirements.

Year of Production: Approximately 1980s-1990s (common for such integrated regulators).